【作者】 陶芙蓉； 高善民； 许璞； 乔青安； 林芳芳； 赵培培； 黄百勇；

【Author】 TAO Fu-rong~1 GAO Shan-min~(1,2) XU Pu~1 QIAO Qing-an~1 LIN Fang-fang~1 ZHAO Pei-pei~1 HUANG Bai-yong~2 (1.School of Chemistry and Materials Science,Ludong University,Yantai 264025,China;2.Zhengyu Science and Technology Corporation of Shandong,Shouguang 262700,China)

【机构】 鲁东大学化学与材料科学学院； 山东正裕科技有限公司；

【摘要】 以 Bi（NO₃）₃·2H₂O 和 NaVO₃为原料,采用液相沉淀法,制备 BiVO₄纳米材料．研究了反应温度和 pH 值对结果的影响．采用 X 射线衍射（XRD）、透射电子显微镜（TEM）和红外光谱（IR）技术对产物进行分析表征．结果表明,反应温度和 pH 值显著影响产物的结晶性和形貌结构,随着反应温度的逐步升高,产物的结晶性越来越好,而且物相趋向于单一的单斜晶系白钨矿结构．在相同的反应温度下,随着溶液 pH 的增大,产物由片状趋向于增厚的块状．更多还原

【Abstract】 Nanometer BiVO₄ were synthesized by precipitation method using Bi（NO₃）₃·2H₂O and NaVO₃ as raw materials. Study on the effect of reaction temperature and pH values.The characterization of as prepared BiVO₄ was carried out by X^-ray diffraction （XRD）,transmission electron microscope （TEM） and infrared spectroscopy （IR）.The results revealed that the reaction temperature and pH values affect the structure and morphology of the products.Along with increasing the reaction temperature,the crystalline of the products was better and highly monoclinic scheelite structure BiVO₄ was obtained at higher temperature.The products were change from sheet to agglomeration along with increase the pH values at same temperature.更多还原